Defense of trust management vulnerabilities in distributed networks

CRM: An efficient trust and reputation model for agent computing

“…According to [16], there are 3 main categories of trust evaluation models: predictive models [21,20,25], transactional models [12,20,27] and, mechanism design based models [13,36]. Predictive models have a sub-category of models using witness's information in order to increase accuracy of their trust measurement.…”

“…These models are worthy to be discussed in terms of their attempt to address the trust establishment in a different perspective. Predictive models also address the security establishment of the network of active agents [9,19,25]. In [9], an approach based on interpreted functions has been proposed to alow an agent to estimate the security level of message components that he receives so that he can handle them correctly.…”

“…The authors propose then recommendations in order to control the environment. In [25], core design issues of trust establishment in network of dynamic agents are proposed. Moreover, different types of possible attacks together with their protection methodologies are identified and discussed.…”

“…Trust is then essential to make such interactions within open multi-agent systems effective [4,23,25,32]. An agent's trust is a measurement of the agent's possibility to actually do what he agrees to do.…”

Secure Trust Metadata Management for Mobile Ad-Hoc Networks

“…A trust management framework could be subjected to other types of security attacks [2,15,12]. For example, bad mouthing attack, in which dishonest recommendations are provided by nodes, on-off attack, in which nodes behave well and badly alternatively, conflicting behavior attack, in which nodes behave differently with different peer nodes, sybil attack, in which several fake identifiers are created by a node and newcomer attack, in which a node registers itself as a new user.…”